diff options
Diffstat (limited to 'drivers/net/igb/igb_vmdq.c')
| -rw-r--r-- | drivers/net/igb/igb_vmdq.c | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/drivers/net/igb/igb_vmdq.c b/drivers/net/igb/igb_vmdq.c new file mode 100644 index 000000000000..9fc32a8847a7 --- /dev/null +++ b/drivers/net/igb/igb_vmdq.c @@ -0,0 +1,437 @@ +/******************************************************************************* + + Intel(R) Gigabit Ethernet Linux driver + Copyright(c) 2007-2013 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +#include <linux/tcp.h> + +#include "igb.h" +#include "igb_vmdq.h" +#include <linux/if_vlan.h> + +#ifdef CONFIG_IGB_VMDQ_NETDEV +int igb_vmdq_open(struct net_device *dev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + struct net_device *main_netdev = adapter->netdev; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + if (test_bit(__IGB_DOWN, &adapter->state)) { + DPRINTK(DRV, WARNING, + "Open %s before opening this device.\n", + main_netdev->name); + return -EAGAIN; + } + netif_carrier_off(dev); + vadapter->tx_ring->vmdq_netdev = dev; + vadapter->rx_ring->vmdq_netdev = dev; + if (is_valid_ether_addr(dev->dev_addr)) { + igb_del_mac_filter(adapter, dev->dev_addr, hw_queue); + igb_add_mac_filter(adapter, dev->dev_addr, hw_queue); + } + netif_carrier_on(dev); + return 0; +} + +int igb_vmdq_close(struct net_device *dev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + netif_carrier_off(dev); + igb_del_mac_filter(adapter, dev->dev_addr, hw_queue); + + vadapter->tx_ring->vmdq_netdev = NULL; + vadapter->rx_ring->vmdq_netdev = NULL; + return 0; +} + +netdev_tx_t igb_vmdq_xmit_frame(struct sk_buff *skb, struct net_device *dev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + + return igb_xmit_frame_ring(skb, vadapter->tx_ring); +} + +struct net_device_stats *igb_vmdq_get_stats(struct net_device *dev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + struct e1000_hw *hw = &adapter->hw; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + vadapter->net_stats.rx_packets += + E1000_READ_REG(hw, E1000_PFVFGPRC(hw_queue)); + E1000_WRITE_REG(hw, E1000_PFVFGPRC(hw_queue), 0); + vadapter->net_stats.tx_packets += + E1000_READ_REG(hw, E1000_PFVFGPTC(hw_queue)); + E1000_WRITE_REG(hw, E1000_PFVFGPTC(hw_queue), 0); + vadapter->net_stats.rx_bytes += + E1000_READ_REG(hw, E1000_PFVFGORC(hw_queue)); + E1000_WRITE_REG(hw, E1000_PFVFGORC(hw_queue), 0); + vadapter->net_stats.tx_bytes += + E1000_READ_REG(hw, E1000_PFVFGOTC(hw_queue)); + E1000_WRITE_REG(hw, E1000_PFVFGOTC(hw_queue), 0); + vadapter->net_stats.multicast += + E1000_READ_REG(hw, E1000_PFVFMPRC(hw_queue)); + E1000_WRITE_REG(hw, E1000_PFVFMPRC(hw_queue), 0); + /* only return the current stats */ + return &vadapter->net_stats; +} + +/** + * igb_write_vm_addr_list - write unicast addresses to RAR table + * @netdev: network interface device structure + * + * Writes unicast address list to the RAR table. + * Returns: -ENOMEM on failure/insufficient address space + * 0 on no addresses written + * X on writing X addresses to the RAR table + **/ +static int igb_write_vm_addr_list(struct net_device *netdev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(netdev); + struct igb_adapter *adapter = vadapter->real_adapter; + int count = 0; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + /* return ENOMEM indicating insufficient memory for addresses */ + if (netdev_uc_count(netdev) > igb_available_rars(adapter)) + return -ENOMEM; + + if (!netdev_uc_empty(netdev)) { +#ifdef NETDEV_HW_ADDR_T_UNICAST + struct netdev_hw_addr *ha; +#else + struct dev_mc_list *ha; +#endif + netdev_for_each_uc_addr(ha, netdev) { +#ifdef NETDEV_HW_ADDR_T_UNICAST + igb_del_mac_filter(adapter, ha->addr, hw_queue); + igb_add_mac_filter(adapter, ha->addr, hw_queue); +#else + igb_del_mac_filter(adapter, ha->da_addr, hw_queue); + igb_add_mac_filter(adapter, ha->da_addr, hw_queue); +#endif + count++; + } + } + return count; +} + + +#define E1000_VMOLR_UPE 0x20000000 /* Unicast promiscuous mode */ +void igb_vmdq_set_rx_mode(struct net_device *dev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + struct e1000_hw *hw = &adapter->hw; + u32 vmolr, rctl; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + /* Check for Promiscuous and All Multicast modes */ + vmolr = E1000_READ_REG(hw, E1000_VMOLR(hw_queue)); + + /* clear the affected bits */ + vmolr &= ~(E1000_VMOLR_UPE | E1000_VMOLR_MPME | + E1000_VMOLR_ROPE | E1000_VMOLR_ROMPE); + + if (dev->flags & IFF_PROMISC) { + vmolr |= E1000_VMOLR_UPE; + rctl = E1000_READ_REG(hw, E1000_RCTL); + rctl |= E1000_RCTL_UPE; + E1000_WRITE_REG(hw, E1000_RCTL, rctl); + } else { + rctl = E1000_READ_REG(hw, E1000_RCTL); + rctl &= ~E1000_RCTL_UPE; + E1000_WRITE_REG(hw, E1000_RCTL, rctl); + if (dev->flags & IFF_ALLMULTI) { + vmolr |= E1000_VMOLR_MPME; + } else { + /* + * Write addresses to the MTA, if the attempt fails + * then we should just turn on promiscous mode so + * that we can at least receive multicast traffic + */ + if (igb_write_mc_addr_list(adapter->netdev) != 0) + vmolr |= E1000_VMOLR_ROMPE; + } +#ifdef HAVE_SET_RX_MODE + /* + * Write addresses to available RAR registers, if there is not + * sufficient space to store all the addresses then enable + * unicast promiscous mode + */ + if (igb_write_vm_addr_list(dev) < 0) + vmolr |= E1000_VMOLR_UPE; +#endif + } + E1000_WRITE_REG(hw, E1000_VMOLR(hw_queue), vmolr); + + return; +} + +int igb_vmdq_set_mac(struct net_device *dev, void *p) +{ + struct sockaddr *addr = p; + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + igb_del_mac_filter(adapter, dev->dev_addr, hw_queue); + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + return igb_add_mac_filter(adapter, dev->dev_addr, hw_queue); +} + +int igb_vmdq_change_mtu(struct net_device *dev, int new_mtu) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + + if (adapter->netdev->mtu < new_mtu) { + DPRINTK(PROBE, INFO, + "Set MTU on %s to >= %d " + "before changing MTU on %s\n", + adapter->netdev->name, new_mtu, dev->name); + return -EINVAL; + } + dev->mtu = new_mtu; + return 0; +} + +void igb_vmdq_tx_timeout(struct net_device *dev) +{ + return; +} + +void igb_vmdq_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + struct e1000_hw *hw = &adapter->hw; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + vadapter->vlgrp = grp; + + igb_enable_vlan_tags(adapter); + E1000_WRITE_REG(hw, E1000_VMVIR(hw_queue), 0); + + return; +} +void igb_vmdq_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; +#ifndef HAVE_NETDEV_VLAN_FEATURES + struct net_device *v_netdev; +#endif + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + /* attempt to add filter to vlvf array */ + igb_vlvf_set(adapter, vid, TRUE, hw_queue); + +#ifndef HAVE_NETDEV_VLAN_FEATURES + + /* Copy feature flags from netdev to the vlan netdev for this vid. + * This allows things like TSO to bubble down to our vlan device. + */ + v_netdev = vlan_group_get_device(vadapter->vlgrp, vid); + v_netdev->features |= adapter->netdev->features; + vlan_group_set_device(vadapter->vlgrp, vid, v_netdev); +#endif + + return; +} +void igb_vmdq_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(dev); + struct igb_adapter *adapter = vadapter->real_adapter; + int hw_queue = vadapter->rx_ring->queue_index + + adapter->vfs_allocated_count; + + vlan_group_set_device(vadapter->vlgrp, vid, NULL); + /* remove vlan from VLVF table array */ + igb_vlvf_set(adapter, vid, FALSE, hw_queue); + + + return; +} + +static int igb_vmdq_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(netdev); + struct igb_adapter *adapter = vadapter->real_adapter; + struct e1000_hw *hw = &adapter->hw; + u32 status; + + if (hw->phy.media_type == e1000_media_type_copper) { + + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full| + SUPPORTED_Autoneg | + SUPPORTED_TP); + ecmd->advertising = ADVERTISED_TP; + + if (hw->mac.autoneg == 1) { + ecmd->advertising |= ADVERTISED_Autoneg; + /* the e1000 autoneg seems to match ethtool nicely */ + ecmd->advertising |= hw->phy.autoneg_advertised; + } + + ecmd->port = PORT_TP; + ecmd->phy_address = hw->phy.addr; + } else { + ecmd->supported = (SUPPORTED_1000baseT_Full | + SUPPORTED_FIBRE | + SUPPORTED_Autoneg); + + ecmd->advertising = (ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg); + + ecmd->port = PORT_FIBRE; + } + + ecmd->transceiver = XCVR_INTERNAL; + + status = E1000_READ_REG(hw, E1000_STATUS); + + if (status & E1000_STATUS_LU) { + + if ((status & E1000_STATUS_SPEED_1000) || + hw->phy.media_type != e1000_media_type_copper) + ecmd->speed = SPEED_1000; + else if (status & E1000_STATUS_SPEED_100) + ecmd->speed = SPEED_100; + else + ecmd->speed = SPEED_10; + + if ((status & E1000_STATUS_FD) || + hw->phy.media_type != e1000_media_type_copper) + ecmd->duplex = DUPLEX_FULL; + else + ecmd->duplex = DUPLEX_HALF; + } else { + ecmd->speed = -1; + ecmd->duplex = -1; + } + + ecmd->autoneg = hw->mac.autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; + return 0; +} + + +static u32 igb_vmdq_get_msglevel(struct net_device *netdev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(netdev); + struct igb_adapter *adapter = vadapter->real_adapter; + return adapter->msg_enable; +} + +static void igb_vmdq_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(netdev); + struct igb_adapter *adapter = vadapter->real_adapter; + struct net_device *main_netdev = adapter->netdev; + + strncpy(drvinfo->driver, igb_driver_name, 32); + strncpy(drvinfo->version, igb_driver_version, 32); + + strncpy(drvinfo->fw_version, "N/A", 4); + snprintf(drvinfo->bus_info, 32, "%s VMDQ %d", main_netdev->name, + vadapter->rx_ring->queue_index); + drvinfo->n_stats = 0; + drvinfo->testinfo_len = 0; + drvinfo->regdump_len = 0; +} + +static void igb_vmdq_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(netdev); + + struct igb_ring *tx_ring = vadapter->tx_ring; + struct igb_ring *rx_ring = vadapter->rx_ring; + + ring->rx_max_pending = IGB_MAX_RXD; + ring->tx_max_pending = IGB_MAX_TXD; + ring->rx_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = rx_ring->count; + ring->tx_pending = tx_ring->count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} +static u32 igb_vmdq_get_rx_csum(struct net_device *netdev) +{ + struct igb_vmdq_adapter *vadapter = netdev_priv(netdev); + struct igb_adapter *adapter = vadapter->real_adapter; + + return test_bit(IGB_RING_FLAG_RX_CSUM, &adapter->rx_ring[0]->flags); +} + + +static struct ethtool_ops igb_vmdq_ethtool_ops = { + .get_settings = igb_vmdq_get_settings, + .get_drvinfo = igb_vmdq_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_ringparam = igb_vmdq_get_ringparam, + .get_rx_csum = igb_vmdq_get_rx_csum, + .get_tx_csum = ethtool_op_get_tx_csum, + .get_sg = ethtool_op_get_sg, + .set_sg = ethtool_op_set_sg, + .get_msglevel = igb_vmdq_get_msglevel, +#ifdef NETIF_F_TSO + .get_tso = ethtool_op_get_tso, +#endif +#ifdef HAVE_ETHTOOL_GET_PERM_ADDR + .get_perm_addr = ethtool_op_get_perm_addr, +#endif +}; + +void igb_vmdq_set_ethtool_ops(struct net_device *netdev) +{ + SET_ETHTOOL_OPS(netdev, &igb_vmdq_ethtool_ops); +} + + +#endif /* CONFIG_IGB_VMDQ_NETDEV */ + |